箱涵施工对下卧既有地铁隧道的变形影响研究  

Study on the influence of box culvert construction on the deformation of existing tunnel

作　　者：熊剑飞 XIONG Jianfei(SGIDI Engineering Consulting(Group)Co.,Ltd.,Shanghai 200093,China)

机构地区：[1]上海勘察设计研究院(集团)股份有限公司,上海200093

出　　处：《佛山科学技术学院学报（自然科学版）》2024年第4期27-33,共7页Journal of Foshan University(Natural Science Edition)

摘　　要：结合佛山地铁三号线上方某箱涵施工案例,分析了下卧地铁隧道在箱涵不同施工时期的变形规律。研究结果表明,箱涵施工导致下卧地铁隧道的变形出现了不同的时空分布规律,隧道隆起量与地层损失、隧道与基坑中线的距离、隧道深度等相关;隧道隆起量与隧道距箱涵开挖中线距离的关系可用考虑软土固化效应影响的Peck曲线函数来表示。Based on the construction case of a box culvert above Foshan Metro Line 3,the deformation law of the underground subway tunnel during different construction periods of the box culvert was analyzed.The research results indicate that the deformation of the underground subway tunnel caused by box culvert construction exhibits different spatial temporal distribution patterns.The tunnel uplift is related to geological losses,the distance between the tunnel and the center-line of the foundation pit,and the depth of tunnel burial.The relationship between tunnel uplift and the distance from the tunnel to the excavation center-line of the box culvert can be represented by the Peck curve function which is considering the effect of soft soil consolidation.

关 键 词：箱涵开挖 隧道变形 时空分布 Peck曲线 

分 类 号：U231.3[交通运输工程—道路与铁道工程]